Across
- 3. discovered the nucleus using the Gold Foil Experiment
- 5. columns on a periodic table
- 6. smallest part of a covalent bond
- 9. free electrons that are able to bond with any atom that surrounds it
- 10. combination of two or more substances that can be seperated through physical means
- 11. identified the neutron
- 13. ion with a positive charge
- 14. ion with a negative charge
- 16. ability to attract electrons
- 17. solid formed from two solutions
- 19. made atomic theory
Down
- 1. rows on a periodic table
- 2. two or more elements that are bonded chemically
- 4. means of seperating a mixture by trapping larger particles on a piece of paper
- 7. chemical reaction where energy is absorbed
- 8. means of seperating a mixture by using boiling points
- 12. the same element with different masses
- 13. bond caused by Attraction between a positve ion and negative ion
- 15. arranged the periodic table by atomic # instead of by mass
- 18. first person to come up with accepted periodic table